Ageing study of Cu-Al-Be hypoeutectoid shape memory alloy

被引：26
|
作者：
Chentouf, S. M. [1 ,2 ]
Bouabdallah, M. [2 ]
Cheniti, H. [1 ,2 ]
Eberhardt, A. [3 ]
Patoor, E. [4 ]
Sari, A. [5 ]
机构：
[1] Univ Sci & Technol Houari Boumedienne, Dept Mat Sci, Fac Genie Mecan & Genie Procedes, El Alia Bab Ezzouar 16111, Alger, Algeria
[2] Ecole Natl Polytech Alger, Lab Genie Sism & Dynam Struct, El Harrach 16200, Alger, Algeria
[3] Ecole Natl Ingenieurs Metz, Lab Phys & Mecan Mat, CNRS, UMR 7554, F-57045 Metz 1, France
[4] Ecole Natl Super Arts & Metiers, Lab Phys & Mecan Mat, CNRS, UMR 7554, F-57078 Metz 3, France
[5] Ctr Rech Nucl Birine, Lab Controle Post Irradiat Mat Nucl, Djelfa 17000, Algeria
来源：
MATERIALS CHARACTERIZATION | 2010年 / 61卷 / 11期
关键词：
Shape memory alloy; Cu-Al-Be system; Ageing; Differential scanning calorimeter; X-ray diffraction; Scanning electron microscopy; MARTENSITIC-TRANSFORMATION;
D O I：
10.1016/j.matchar.2010.07.009
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Thermal ageing at constant temperature (350 C) and under systematically designed temperature varying conditions were performed on the metastable austenitic phase of hypoeutectoid Cu-Al-Be shape memory alloy Thermal precipitations and their effects on the alloy global microstructure were studied by DSC, XRD and SEM techniques Precipitations of equilibrium phases (alpha + gamma(2)) within the temperature range of 330-370 degrees C and their generalization by a discontinuous mechanism for an ageing time of 864 ks (240 h) were identified and analyzed The results of this study are expected to benefit the applications of copper based shape memory alloys under various thermal conditions (C) 2010 Elsevier Inc All rights reserved
引用
收藏
页码：1187 / 1193
页数：7
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